20153720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16253}}^1$

素因数の和:16295

約数の個数: 32

約数和(自身を含む): 46811520

約数和(自身を除く): 26657800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16253, 32506, 65012, 81265, 130024, 162530, 325060, 503843, 650120, 1007686, 2015372, 2519215, 4030744, 5038430, 10076860, 20153720]

約数ペア:

[(1, 20153720), (2, 10076860), (4, 5038430), (5, 4030744), (8, 2519215), (10, 2015372), (20, 1007686), (31, 650120), (40, 503843), (62, 325060), (124, 162530), (155, 130024), (248, 81265), (310, 65012), (620, 32506), (1240, 16253)]